cause, explanation, or justification for action or event. Explanations for why some things occurred or was done. think, understand, and form judgements logically.

particular kind of matter with uniform properties. Particular types of material.

thing characteristic of its kind. Things, people, which represent a category. be illustrated or exemplified.

able to adapt or be adapted to many different functions or activities.

very active.

Of thyroid gland or cartilage in neck or throat. large ductless gland in neck which secretes hormones regulating growth and development through rate of metabolism.

Circumstance or condition surrounding an event.

Being with another person rather than alone. associate with.

Something required in a business contract; term. To improve something to make it better.

player whose task it is to block for ballcarrier or kicker. Classes of drugs that inhibit a biological process.

gladly received. used to greet someone in polite or friendly way. Friendly greeting to someone who has arrived. To accept or receive something happily and gladly.

unknown or unspecified person.

designed to keep something undesirable from occurring. medicine designed to prevent disease or ill health.

any of muscular-walled tubes forming part of circulation system by which blood is conveyed from heart to all parts of body. Tubes that carry blood from the heart to the body.